Evidence map›Paper›PMID 38634334›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024

Presynaptic density determined by SV2A PET is closely associated with postsynaptic metabotropic glutamate receptor 5 availability and independent of amyloid pathology in early cognitive impairment.

Jie Wang, Qi Huang, Kun He, Junpeng Li, Tengfei Guo, Yang Yang, Zengping Lin, Songye Li, Greet Vanderlinden, Yiyun Huang and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
6.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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  8. Molecular imaging of stem cell therapies in ischemic stroke.European journal of nuclear medicine and molecular imaging · 2025
    Review
  9. Article
  10. Review
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  12. Article
  13. Prediction of longitudinal synaptic loss in Alzheimer's disease using tau PET and plasma biomarkers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  14. Article
  15. Rock inhibitors in Alzheimer's disease.Frontiers in aging · 2025
    Review
  16. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 8 institutions in 4 countries.

Jie WangDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Qi HuangDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Kun HeDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Junpeng LiDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Tengfei GuoInstitute of Biomedical Engineering, Shenzhen Bay Laboratory, Shenzhen, China.
Yang YangBeijing United Imaging Research Institute of Intelligent Imaging, Beijing, China.
Zengping LinCentral Research Institute, United Imaging Healthcare Group Co., Ltd, Shanghai, China.
Songye LiDepartment of Radiology and Biomedical Imaging, PET Center, Yale University School of Medicine, New Haven, Connecticut, USA.
Greet VanderlindenDepartment of Imaging and Pathology, Nuclear Medicine and Molecular Imaging, KU Leuven, Leuven, Belgium.
Yiyun HuangDepartment of Radiology and Biomedical Imaging, PET Center, Yale University School of Medicine, New Haven, Connecticut, USA.
Koen Van LaereDepartment of Imaging and Pathology, Nuclear Medicine and Molecular Imaging, KU Leuven, Leuven, Belgium.
Yihui GuanDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Qihao GuoDepartment of Gerontology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
Ruiqing NiInstitute for Biomedical Engineering, University of Zurich & ETH Zurich, Zurich, Switzerland.
Binying LiDepartment of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Fang XieDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.ORCID 0000-0003-2667-281X
Fudan University · CNKU Leuven · BEShanghai Jiao Tong University · CNUnited Imaging Healthcare (China) · CNYale University · USShanghai Medical College of Fudan University · CNShenzhen Bay Laboratory · CNUniversity of Zurich · CH

Funding

Huashan Hospital, Fudan University 2017QD081National Key R&D Program of China 2016YFC1306305National Key R&D Program of China 2018YFE0203600National Science Foundation of China 81571345National Science Foundation of China 81801752National Science Foundation of China 8217052097National Science Foundation of China 82201583RN acknowledges Swiss Center for Applied Human Toxicology AP22-02Shanghai Municipal Key Clinical Specialty 3030247006Shanghai Municipal Science and Technology Major Project 2018SHZDZX01Shanghai Sailing Program 18YF1403200Shanghai Sailing Program 19YF1405300STI2030-Major Projects 2022ZD0213800ZJLab Clinical Research Plan of SHDC SHDC2020CR2056B
6 · The paper itself

Abstract

introductionMetabotropic glutamate receptor 5 (mGluR5) is involved in regulating integrative brain function and synaptic transmission. Aberrant mGluR5 signaling and relevant synaptic failure play a key role in the pathophysiological mechanism of Alzheimer's disease (AD).

methodsTen cognitively impaired (CI) individuals and 10 healthy controls (HCs) underwent [

resultsCI patients exhibited lower mGluR5 availability and synaptic density in the medial temporal lobe than HCs. Regional synaptic density was closely associated with regional mGluR5 availability. mGluR5 availability and synaptic loss partially mediated the relationship between amyloid deposition and cognition.

conclusionsReductions in mGluR5 availability and synaptic density exhibit similar spatial patterns in AD and are closely linked. HIGHLIGHTS: Cognitively impaired patients exhibited lower mGluR5 availability and synaptic density in the medial temporal lobe than HCs. Reductions in mGluR5 availability and synaptic density exhibit similar spatial patterns in AD. Regional synaptic density was closely associated with regional mGluR5 availability. mGluR5 availability and synaptic loss partially mediated the relationship between amyloid deposition and global cognition. With further research, modulating mGluR5 availability might be a potential therapeutic strategy for improving synaptic function in AD.

Indexed as

Cognitive DysfunctionPositron-Emission TomographyReceptor, Metabotropic Glutamate 5AgedAlzheimer DiseaseBrainFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedSynapsesGRM5 protein, humanReceptor, Metabotropic Glutamate 5Alzheimer's diseaseamyloid depositioncognitionmGluR5 availabilityPET/MRsynaptic density

Identifiers

PMID38634334
PMCPMC11180932
OpenAlexW4394920884

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.